chapter  3
Diseases of the Larynx, Hypopharynx, and Trachea
ByLeon Barnes
Pages 92

A vocal cord nodule or polyp (VCNP) represents a nonneoplastic, vascular-stromal reaction to vocal abuse. Some otolaryngologists distinguish nodules from polyps; those that do, define a nodule as a small sessile lesion, usually less than 3 mm, which occurs between the anterior and middle third of the true vocal cord. It is typically bilateral, symmetrical, and immobile during phonation (1-4). A polyp, in contrast, may be sessile or pedunculated, usually larger than 3 mm, and it occurs on the free edge of the anterior third of the true vocal cord. It is generally unilateral and, if pedunculated, mobile on phonation.